Network · AS263791

AS263791 REFSA TELECOMUNICACIONES

AS263791 (REFSA TELECOMUNICACIONES) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS263791

  • OwnerREFSA TELECOMUNICACIONES
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,024
  • IPv4 ranges1
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 138.121.112.0/22

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS263791 traffic at signup.

Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.

curl https://veqen-app.com/v1/ip/check \
  -H "Authorization: Bearer $VEQEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip": "203.0.113.7"}'
import os, requests

r = requests.post(
    "https://veqen-app.com/v1/ip/check",
    headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
    json={"ip": "203.0.113.7"},
    timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])
const res = await fetch("https://veqen-app.com/v1/ip/check", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);
Questions

About AS263791

Is AS263791 a datacenter or VPN network?

AS263791 (REFSA TELECOMUNICACIONES) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS263791?

AS263791 is registered to REFSA TELECOMUNICACIONES. It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS263791?

Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.